Low-frequency spectral enhancement of THz electromagnetic waves emitted from InAs surface with increased excitation intensity

R. Yano, H. Gotoh, Y. Hirayama, S. Miyashita, S. Kadoya, K. Kusuda, M. Yamanishi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A study was conducted on the excitation intensity dependence of THz electromagnetic waves emitted from the surface of an undoped InAs wafer excited by femtosecond laser pulses without an eternal magnetic field to clarify the relation between the spectral profile and the amplitude of the THz waves. It was found that the spectral amplitude of the THz waves was enhanced in the low-frequency regime when the excitation intensity was increased.

Original languageEnglish
Pages (from-to)2141-2145
Number of pages5
JournalJournal of Applied Physics
Volume95
Issue number4
DOIs
Publication statusPublished - 2004 Feb 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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